Operators are the constructs which can manipulate the value of operands.

v Operators are the constructs which can
manipulate the value of operands.

v Consider the **expression** ** 4 + 5 = 9.** Here,

-Python language
supports the following types of operators

·
Arithmetic
Operators

·
Comparison
(Relational) Operators

·
Assignment
Operators

·
Logical
Operators

·
Bitwise
Operators

·
Membership
Operators

·
Identity
Operators

They are used to
perform **mathematical operations** like
addition, subtraction, multiplication etc. **Assume,
a=10 and b=5**

a=10

b=5

print("a+b=",a+b)

print("a-b=",a-b)

print("a*b=",a*b)

print("a/b=",a/b)

print("a%b=",a%b)

print("a//b=",a//b)

print("a**b=",a**b)

a+b= 15

a-b= 5

a*b= 50

a/b= 2.0

a%b= 0

a//b= 2

a**b= 100000

·
Comparison operators
are used to compare values.

·
It either
returns True or False according to the condition.** ****Assume, a=10 and b=5**

a=10

b=5

print("a>b=>",a>b)

print("a>b=>",a<b)

print("a==b=>",a==b)

print("a!=b=>",a!=b)

print("a>=b=>",a<=b)

print("a>=b=>",a>=b)

a>b=> True

a>b=>
False

a==b=> False

a!=b=> True

a>=b=>
False

a>=b=>
True

-Assignment
operators are used in Python to assign values to variables.

a = 21

b = 10

c = 0

c = a + b

print("Line
1 - Value of c is ", c)

c += a

print("Line
2 - Value of c is ", c)

c *= a

print("Line
3 - Value of c is ", c)

c /= a

print("Line
4 - Value of c is ", c)

c= 2 c %= a

print("Line
5 - Value of c is ", c) c **= a

print("Line
6 - Value of c is ", c) c //= a

print("Line
7 - Value of c is ", c)

Line 1 - Value
of c is 31

Line 2 - Value
of c is 52

Line 3 - Value
of c is 1092

Line 4 - Value
of c is 52.0

Line 5 - Value
of c is 2

Line 6 - Value
of c is 2097152

Line 7 - Value
of c is 99864

-Logical
operators are the and, or, not operators.

**Example**

a = True

b = False

print('a and b
is',a and b)

print('a or b
is',a or b)

print('not a
is',not a)

x and y is False

x or y is True

not x is False

A **bitwise
operation** operates on one or more **bit**
patterns at the level of individual Bits

Let x = 10 (0000
1010 in binary) and

y = 4 (0000 0100
in binary)

**Example **

a = 60 # 60 = 0011 1100

b = 13 # 13 = 0000 1101

c = 0

c = a & b; # 12 = 0000 1100

print "Line
1 - Value of c is ", c

c = a | b; # 61 = 0011 1101

print "Line
2 - Value of c is ", c

c = a ^ b; # 49 = 0011 0001

print "Line
3 - Value of c is ", c

c = ~a; # -61 = 1100 0011

print "Line
4 - Value of c is ", c

c = a <<
2; #
240 = 1111 0000

print "Line
5 - Value of c is ", c

c = a >>
2; #
15 = 0000 1111

print "Line
6 - Value of c is ", c

Line 1 - Value
of c is 12

Line 2 - Value
of c is 61

Line 3 - Value of c is 49

Line 4 - Value of c is -61

Line 5 - Value of c is 240

Line 6 - Value of c is 15

v Evaluates to find a value or a variable is in
the specified sequence of string, list, tuple, dictionary or not.

v Let, **x=[5,3,6,4,1].**
To check particular item in list or not**,
in and not in** operators are used.

x=[5,3,6,4,1]

**>>> 5
in x **

True

**>>> 5
not in x **

False

They are used to
check if two values (or variables) are located on the same part of the memory.

x = 5

y = 5

x2 = 'Hello'

y2 = 'Hello'

print(x1 is not
y1)

print(x2 is y2)

False

True

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Problem Solving and Python Programming : Data, Expressions, Statements : Operators and Types of Operators - Python |

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